Brocade Virtual ADX Server Load Balancing Guide (Supporting ADX v03.1.00) - Manual (Page 222)

206 Brocade Virtual ADX Server Load Balancing Guide
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Element health checks
4
Displaying health-check policies and their status
To display a list of the configured health-check policies and their current status, enter the following
command.
Syntax: show healthck
Table 19 displays the health-check policy status.
TABLE 19 Health-check policy status
Field Description
Total nodes The number of health-check policies in the configuration. The number includes attached and
unattached policies.
Max nodes The maximum number of health-check policies you can configure.
Name The element-action expression or policy name.
Value The current value of the policy. The value can be one of the following:
•
TRUE – The most recent health check performed using this policy was successful. The
Brocade Virtual ADX received a valid reply to the health check.
•
FALSE – The most recent health check performed using this policy was unsuccessful.
•
N/B – The health check is not bound to any VIP and thus is not in use.
•
N/A (Not Attached) – The policy is not attached to a real server.
NOTE: If the policy is disabled, this value is always TRUE, because the Brocade Virtual ADX
assumes a server is healthy unless its health check is enabled and the server has not
responded appropriately to the health check.
Enable The state of the policy, which can be one of the following:
•
YES – The policy is enabled.
•
NO – The policy is disabled.
•
na (not applicable) – This field does not apply to the policy. This value indicates that the
policy is not attached to a real server.
Type The element-action expression or policy type. For Layer 3 health checks, this information
consists of ICMP and the IP address tested by the health check.
Values can be one of the following:
•
tcp – An element-action expression for a TCP application port.
•
udp – An element-action expression for a UDP application port.
•
and – A policy containing element-action expressions joined by AND.
•
or – A policy containing element-action expressions joined by OR.
Dest-IP For element-action expressions, the IP address of the real server. For policies, this field shows
the element-action expressions in the policy.
The value “ - ”indicates that the IP address has not been specified.
Port For element-action expressions, the application port. This field does not apply to policies.
Virtual ADX(config-hc-check1)#show healthck
Total nodes: 6; Max nodes: 128
Name Value Enable Type Dest-IP Port Proto Layer
--------------------------------------------------------------------------------
check1 TRUE YES tcp 10.10.10.50 http http l4-chk
check2 TRUE YES tcp 10.10.10.40 http http l7-chk
check3 TRUE NO udp 10.10.10.30 http http l4-chk
check4 TRUE NO udp 10.10.10.40 http http l4-chk
httpsrvr TRUE YES and check1 check2
nested1 N/A na and check1 check2
nested2 N/A na or check3 check4